¿que tipo de células son las responsables de que no volvamos a padecer algunas enfermedades que ya hemos padecido ?

cell regulation is conducted by special proteins.

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added